Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 8h 33m at 6:10 pm (-0.4 ft)
Next high tide (tomorrow) : 4:18 am (1.6 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 6:43 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Apr 2095

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:011.38:16-0.18:351.17:077:37Waning Crescent1Fri
2Sat1:451.34:221.29:140.09:070.87:067:38Waning Crescent2Sat
3Sun3:171.44:421.210:080.29:490.57:057:38New Moon3Sun
4Mon4:351.55:001.111:020.410:340.37:047:39New Moon4Mon
5Tue5:471.65:171.111:580.711:240.07:037:40New Moon5Tue
6Wed6:571.65:311.21:040.97:027:40Waxing Crescent6Wed
7Thu8:091.65:381.212:16-0.12:271.17:017:41Waxing Crescent7Thu
8Fri9:271.61:12-0.26:597:41Waxing Crescent8Fri
9Sat10:521.62:12-0.26:587:42Waxing Crescent9Sat
10Sun12:181.53:16-0.16:577:42First Quarter10Sun
11Mon1:341.54:230.06:567:43First Quarter11Mon
12Tue2:311.45:350.16:557:44First Quarter12Tue
13Wed3:101.46:480.26:547:44Waxing Gibbous13Wed
14Thu3:351.37:540.39:361.16:537:45Waxing Gibbous14Thu
15Fri1:401.23:531.28:470.49:320.96:527:45Waxing Gibbous15Fri
16Sat2:511.24:071.29:290.59:440.86:517:46Waxing Gibbous16Sat
17Sun3:531.34:181.210:040.710:050.66:507:47Waxing Gibbous17Sun
18Mon4:491.34:231.210:370.810:310.56:497:47Full Moon18Mon
19Tue5:401.44:211.211:110.910:580.36:487:48Full Moon19Tue
20Wed6:301.54:121.211:531.111:290.26:477:48Full Moon20Wed
21Thu7:201.54:001.21:041.26:467:49Full Moon21Thu
22Fri8:141.612:020.16:457:50Waning Gibbous22Fri
23Sat9:161.612:390.16:447:50Waning Gibbous23Sat
24Sun10:261.61:230.06:437:51Waning Gibbous24Sun
25Mon11:401.62:140.06:427:52Third Quarter25Mon
26Tue12:421.63:120.06:417:52Third Quarter26Tue
27Wed1:271.64:170.16:407:53Third Quarter27Wed
28Thu1:591.55:270.26:397:53Third Quarter28Thu
29Fri2:241.46:410.38:031.16:387:54Waning Crescent29Fri
30Sat12:571.32:461.37:530.48:220.86:377:55Waning Crescent30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8771450)

Common Questions About Galveston Pier 21, TX Tides

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What time does the tide turn (slack tide) in Galveston Pier 21, TX today?

Slack tide in Galveston Pier 21, TX is approximately 11:14 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Galveston Pier 21, TX?

Galveston Pier 21, TX is currently in a transitional phase. Tonight's moon is 32% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Galveston Pier 21, TX tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Galveston Pier 21, TX?

Tide predictions for Galveston Pier 21, TX come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Galveston Pier 21, TX?

Tide data for Galveston Pier 21, TX is sourced from NOAA Station #8771450. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8771450.

What is the moon phase in Galveston Pier 21, TX tonight?

Tonight the moon over Galveston Pier 21, TX is Third Quarter (32% illuminated). This places Galveston Pier 21, TX in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA